HYDROPHONIC PROBE

摘要

An optical reflection hydrophonic probe is useful for determining the pressure-time behaviour of pressure waves in fluids. One end of an optical waveguide (glass fibre) dips into the fluid. The reflection of light at the tip of the glass fibre is combined with the pressure amplitude in the fluid by means of the relationship between refractive index and density. This hydrophonic probe can capture pressure signals of high rate of rise and amplitude, and offers long service life and trouble-free performance.